He has made over 60 guest appearances on TV’s Call for Help with Leo Laporte and was voted guest of the year on the Computer America radio show. He has produced over 1100 episodes of his daily video podcast Learn Excel from MrExcel. When not writing books, Bill spends six months on the road, entertaining people while showing them the powerful tricks in Excel. Before founding MrExcel.com in 1998, Jelen spent twelve years “in the trenches”, as a financial analyst for the accounting, finance, marketing, and operations departments of a publicly held company. Since then, his company automates Excel reports for hundreds of clients around the world. The website answers over 30,000 questions a year – for free – for readers all over the world. Jelen hails from Akron, Ohio.